Jiangxi Mingxin's Dry Separation Technology for Waste Circuit Board Crushing and Sorting-Industry News-Jiangxi Mingxin Metallurgical Equipment Co., Ltd.In the field of resource recycling of waste circuit boards, the dry separation crushing and sorting process developed by Jiangxi Mingxin Metallurgical Equipment Co., Ltd. has broken through traditional processing bottlenecks with its core advantages of "water-free operation, high purity, and low loss", becoming a preferred solution for large-scale and green recycling in the industry. As a high-tech enterprise with more than 30 years of experience in the metallurgical equipment field and numerous core patents, Mingxin has deeply integrated precision crushing technology with multi-stage dry separation process, building a full-process recycling system that combines environmental compliance and economic efficiency, completely getting rid of dependence on water resources, and realizing the dual value of resource recycling and ecological protection.
Water-free operation is a landmark advantage of Mingxin's dry separation process, fundamentally solving the scenario limitations and environmental risks of traditional water-based separation processes. The entire system requires no water throughout the process, which not only avoids water resource consumption and wastewater treatment pressure, but also adapts to arid and water-scarce areas and production scenarios with strict requirements on water quality discharge, significantly reducing the initial project investment and later operating costs. At the same time, the process adopts a fully enclosed negative pressure design, combined with an efficient pulse dust removal system, which can accurately capture fine dust generated during crushing and sorting with excellent dust treatment efficiency. Coupled with the low-noise equipment structure design, it achieves full-dimensional compliance of waste gas, dust and noise emissions with national relevant standards, creating a clean and safe production environment.
The coordination of multi-stage crushing and composite separation technology has forged the high-efficiency recovery capacity and high-purity output advantage of Mingxin's dry separation process. The system adopts a three-stage progressive crushing process, combining hobbing shear shredding, hammer crushing and cutter head crushing, with a precise temperature control device to keep the crushing temperature below 80℃. This not only can fully dissociate metal foils from resin and glass fibers in circuit boards, but also avoid material charring and harmful gas emission, reducing pollutant release by 99% compared with traditional crushing. Subsequently, through multi-stage purification of magnetic separation, air flow gravity separation and high-voltage electrostatic separation, precise separation is achieved based on the differences in density and conductivity between metals and non-metals. The copper recovery rate can reach more than 97%, the iron recovery rate exceeds 99%, and the epoxy resin recovery rate also reaches 97%. The separated non-metallic powder has extremely low metal content and can be directly used in the processing of wood-plastic materials, fireproof boards and other composite materials, realizing full resource utilization.
Automatic operation and maintenance and flexible adaptability further enhance the industrial value of Mingxin's dry separation process. The entire production line is equipped with a PLC intelligent control system and a human-machine interface, supporting the switching between automatic and manual modes, and can realize the full-process automatic operation from feeding, crushing, sorting to discharging. The processing capacity of a single production line reaches 500-800 kg per hour, greatly reducing labor input and operation errors. The equipment has a compact structure, reasonable layout, controllable floor space, and supports customized configuration according to customers' production capacity needs, adapting to various material processing scenarios such as waste household appliance circuit boards, PCB scrap, and copper-clad laminates. Relying on Mingxin's perfect "industry-university-research" technical support and after-sales system, the equipment not only operates stably and is easy to maintain, but also can be continuously iterated and optimized, helping customers build a long-term and reliable resource recycling production line.
Jiangxi Mingxin's dry separation technology for waste circuit board crushing and sorting breaks the constraints of traditional recycling models through technological innovation. It not only practices the concept of green development through water-free and low-pollution design, but also taps the economic value of "urban mines" with high recovery rate and high-purity output, providing an efficient, compliant and sustainable solution for the electronic waste resource utilization industry.